[1] Free Univ Brussels, Inst Mol Biol & Med, Unit Evolutionary Genet, B-6041 Gosselies, Belgium
[2] Free Univ Brussels, Inst Mol Biol & Med, Unit Bioinformat, B-6041 Gosselies, Belgium
[3] Queens Univ Belfast, Belfast BT9 7BL, Antrim, North Ireland
[4] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
[5] Conservat Nat Trust, Calicut 673005, Kerala, India
[6] Univ Fed Santa Catarina, CCB, Dept Ecol & Zool, Aquat Mammals Lab, BR-88040970 Florianopolis, SC, Brazil
[7] Natl Univ Mar del Plata, Marine Mammals Lab, RA-7600 Mar Del Plata, Argentina
[8] Univ Konstanz, Fak Biol, D-78457 Constance, Germany
[9] SmithKline Beecham Pharmaceut, Collegeville, PA 19426 USA